P U M P D I S A S S E M B L Y
Step 7
Lift liquid chambers and center
section away from inlet manifold
to expose left inlet valve ball, valve
seat and valve seat O-ring. Inspect
for nicks, gouges, chemical attack or
abrasive wear.
Step 8
Using a 9/16" wrench, remove the
liquid chamber from the center
section.
Step 9
The liquid chamber should be
removed to expose the diaphragm
and outer piston.
Step 11
After loosening and removing
the diaphragm assembly, remove
opposite liquid chamber.
Step 12
After removing the opposite liquid
chamber, the remaining diaphragm
assembly and diaphragm shaft can
be easily removed.
Step 13
To remove diaphragm assembly
from shaft, secure shaft with soft
jaws (a vise fitted with plywood,
plastic or other suitable material) to
ensure shaft is not nicked, scratched
or gouged. Using an adjustable
wrench, remove diaphragm
assembly from shaft. Inspect all
parts for wear and replace with
genuine Wilden parts, if necessary.
Step 10
Using an adjustable wrench,
remove the diaphragm assembly
from diaphragm shaft by turning
counter-clockwise.
WILDEN PUMP & ENGINEERING, LLC
11
WIL-11112-E-01
